The John Deere 108 tractor has 8 hp engine horsepower and 18.5 hp PTO horsepower.
Engine horsepower8 hp
PTO horsepower18.5 hp
Drawbar horsepower6.5 hp
Rated RPM3,600 rpm
Operating weight405 lb
John Deere 108 Horsepower Details
Engine horsepower
8 hp
PTO horsepower
18.5 hp
Drawbar horsepower
6.5 hp
Rated engine RPM
3,600 rpm
Engine displacement
318 cc
Engine cylinders
1 cylinders
Engine model
details
Operating weight
405 lb
Horsepower Comparison Chart
Engine horsepower comparison
This model
8 hp
Average
99 hp
Low
5 hp
High
640 hp
PTO horsepower comparison
This model
18.5 hp
Average
86.2 hp
Low
5 hp
High
490 hp
Drawbar horsepower comparison
This model
6.5 hp
Average
87.8 hp
Low
5.5 hp
High
640 hp
Operating weight comparison
This model
405 lb
Average
9,181 lb
Low
320 lb
High
56,320 lb
John Deere 108 Extra Horsepower Notes
Horsepower note
For pulling work, the John Deere 108’s 6.5 hp drawbar rating is the number to compare, not the higher 8 hp engine rating.
PTO note
For PTO-driven work, the John Deere 108’s practical rating is 18.5 hp, which fits finish mowing, light-duty rotary cutting, light tilling and small utility PTO jobs.
Drawbar note
The John Deere 108’s 6.5 hp drawbar rating is the better number for ground-pulling work than the 8 hp engine rating.
Power-to-weight note
The John Deere 108’s weight-to-power figure is about 50.6 lb per engine horsepower; that means it is light for its power, so traction and ballast can become the limiting factor before engine power.
Engine note
The John Deere 108’s engine setup is engine model details, 318 cc displacement, 1 cylinders, rated at 3,600 rpm, matching its low-horsepower compact horsepower range.
Torque / RPM note
The John Deere 108 lists 3,600 rpm as the rated engine RPM, which is the speed attached to its power rating.
Official information note
Mistakes do happen. Horsepower, PTO horsepower, drawbar horsepower, weight and engine specs can change by year, market, engine option, cab, transmission and test standard. Please check the operator manual and official deere.com website for official information.
